Developer Mircea Voskerician is suing Zuckerberg over breach of contract. He says he held a claim on one of the properties, with plans to tear down an existing house and build a new home on the site. Zuckerberg, Voskerician says, bought the claim to the house for $1.7 million and the house itself from its owner for $4.8 million.

As part of the deal, Voskerician alleges, Zuckerberg was supposed to connect him with wealthy individuals who might be interested in buying his homes. He said that did not happen.

According to the Merc, the lawsuit says: "Zuckerberg stated he did not want construction in his backyard for 14 months and told Voskerician that he would refer him business and make him introductions if, in exchange, Voskerician would help him secure his privacy."